Short description
A general-purpose mains step-down transformer that converts high AC mains voltage (typically 230 V AC) to a low-voltage AC output of 12 V at up to 3 A. It is commonly used in power supply circuits, battery chargers, and low-power electronic applications.

Key features

• Input: ~230 V AC mains

• Output: 12 V AC, 3 A max.

• Winding: 100 % copper for good conductivity

• Mounting: Vertical/chassis mounting type

• Soft iron core for efficient magnetic coupling

• Insulated flying leads for easy connection

Advantages

• Suitable for moderate-power AC to low-voltage AC conversion

• Simple passive transformer requiring no active components

• Reliable isolation between mains and secondary circuits

• Can be used with rectifier/regulator circuits to make DC power supplies

Typical applications

• AC mains to 12 V AC power supplies

• Battery charging circuits

• DIY electronics and educational projects

• Powering small controllers, relays, and other low-power devices